It now remains to determine how exactly to choose the boundaries between smeared spectral regions.
A common strategy is to use a heuristic to find local peaks and then assign the boundaries to be the midpoints of the peaks.
Since displacement interpolation makes extreme changes to the spectra, however,
this somewhat naïve plan [1]}, [2]} is not sufficiently robust to produce a clean signal.
We propose a more principled segmentation method based on frequency reassignment.
